i format...load the kernal...then put it in my old dsi v1.3 ....it starts up fine. i see "loading" then it loads the card....then i go into config and try to press the update button but there is no update button

i click on "turn on update" then it says

" please restore flash.r4i to /r4imenu to enable updating "

the kernal has flash.r4i in that folder ...but after its in the ds i check the folder again and the flash file is missing... i reload the kernal with the flash.r4i ...and the file gets deleted again...

for some reason it keeps getting deleted and im unable to update my card